Procumbent or sometimes scandent herb with quadrangular puberulent stems to 600mm long. Puberulent leaves to 90mm x 45mm. Termnial & axillary racemes to 250mm long with 6-12 flowers, with violet-purple bracts to 2mm long & bracteoles to 1.5mm long, white flowers with a purple blotch, to 20mm wide, 5-lobed calyx tube to 1mm long, 5 sepals to 3.5mm long, corolla to 20mm wide, tube to 5.5mm x 2.5mm, upper part 8mm x 8mm with 5 lobes to 6mm wide. Puberulent capsule to 25mm x 3.5mm.
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